Answer:
About 191 people
Step-by-step explanation:
Given:
On the subway 8 out of 11 people are carrying a briefcase.
There are 700 people on the subway.
Question asked:
About how many people do not have a briefcase ?
Solution:
By applying unitary method:
Out of 11 people, number of people having briefcase = 8
Out of 1 , number of people having briefcase = [tex]\frac{8}{11}[/tex]
Out of 700 people, number of people having briefcase = [tex]\frac{8}{11} \times700\\[/tex]
= [tex]\frac{5600}{11}[/tex]
Number of people not having briefcase = [tex]700 -[/tex][tex]\frac{5600}{11}[/tex]
= [tex]\frac{7700-5600}{11}[/tex]
= [tex]\frac{2100}{11}[/tex] = [tex]190.90[/tex]
Therefore, about 191 people do not have a briefcase on the subway.
